Nickel nanoparticles generated by pulsed laser ablation in liquid CO2

Mardiansyah Mardis, Noriharu Takada, Siti Machmudah, Wahyudiono, Koichi Sasaki, Hideki Kanda, Motonobu Goto*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Nickel nanoparticles with various structures were synthesized by a pulsed laser ablation process in liquid CO2 at 17 °C and 5.2 MPa. A nickel plate immersed in liquid CO2 was used as a target. This was irradiated by a laser beam with a fundamental wavelength of 1064 nm at 2.46 mJ for 15 min. The generated particles were deposited on a silicon wafer after natural evaporation of the liquid CO2, and analyzed by field emission scanning electron microscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. Nickel and carbon particles with sphere-like structures or apple-shaped structures were observed. Furthermore, characteristic nickel/carbon particles with core/shell structures were also produced. The generated particles ranged in size between 5 and 350 nm in diameter, with dominant sizes under 50 nm.

Original languageEnglish
Pages (from-to)4581-4590
Number of pages10
JournalResearch on Chemical Intermediates
Issue number5
Publication statusPublished - 1 May 2016


  • Irradiation
  • Liquid CO
  • Nickel nanoparticles
  • Pulsed laser ablation


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